CN114371455B - A spherical near-field antenna measurement system and correction method - Google Patents
A spherical near-field antenna measurement system and correction method Download PDFInfo
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- CN114371455B CN114371455B CN202111566112.XA CN202111566112A CN114371455B CN 114371455 B CN114371455 B CN 114371455B CN 202111566112 A CN202111566112 A CN 202111566112A CN 114371455 B CN114371455 B CN 114371455B
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- 238000005259 measurement Methods 0.000 title claims abstract description 41
- 238000012937 correction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 8
- 238000004321 preservation Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
本发明涉及球面天线技术领域，具体涉及一种球面近场天线测量系统及校正方法；球面近场天线测量系统包括球面阵、骨架和校正件，球面阵设置于骨架的上侧，且与骨架配合，校正件设置于骨架的下侧，且校正件与骨架转动配合；骨架包括若干驱动架和设有若干凹槽的球形架，球形架通过若干凹槽与球面阵契合，且球形架与校正件固定连接，若干驱动架均与球面阵转动连接，且若干驱动架贯穿凹槽与校正件固定连接，改进测量系统的结构，利用驱动架配合球形架，通过驱动架改变球面阵的俯仰角度，进而使得球面阵的接收范围得到有效拓展，进而有效提升球面近场天线的使用范围。
The present invention relates to the technical field of spherical antennas, and in particular to a spherical near-field antenna measurement system and a correction method; the spherical near-field antenna measurement system comprises a spherical array, a frame and a correction piece, the spherical array is arranged on the upper side of the frame and cooperates with the frame, the correction piece is arranged on the lower side of the frame, and the correction piece rotates with the frame; the frame comprises a plurality of drive frames and a spherical frame provided with a plurality of grooves, the spherical frame fits with the spherical array through the plurality of grooves, the spherical frame is fixedly connected with the correction piece, a plurality of drive frames are all rotationally connected with the spherical array, and a plurality of drive frames penetrate the grooves and are fixedly connected with the correction piece, the structure of the measurement system is improved, the drive frame cooperates with the spherical frame, the pitch angle of the spherical array is changed through the drive frame, thereby effectively expanding the receiving range of the spherical array, thereby effectively improving the use range of the spherical near-field antenna.
Description
Technical Field
The invention relates to the technical field of spherical antennas, in particular to a spherical near-field antenna measurement system and a correction method.
Background
The spherical antenna can realize hemispherical omnibearing radiation, has incomparable advantages in a plurality of antenna systems, and is commonly used in ground communication systems and airborne vehicle-mounted medium-pass systems;
in the prior art, when a spherical near-field antenna is utilized, the angle of the near-field antenna cannot be adjusted according to the needs, so that the application range of the near-field antenna cannot be effectively expanded.
Disclosure of Invention
The invention aims to provide a spherical near-field antenna measuring system and a correcting method, which are used for solving the problem that the spherical near-field antenna in the prior art cannot be subjected to angle adjustment according to the requirement.
In order to achieve the above object, the present invention provides a spherical near field antenna measurement system, which includes a spherical array, a skeleton and a calibration piece, wherein the spherical array is disposed on the upper side of the skeleton and is matched with the skeleton, the calibration piece is disposed on the lower side of the skeleton, and the calibration piece is in running fit with the skeleton;
the framework comprises a plurality of driving frames and a spherical frame provided with a plurality of grooves, the spherical frame is matched with the spherical array through a plurality of grooves, the spherical frame is fixedly connected with the correcting piece, the driving frames are rotatably connected with the spherical array, and the driving frames penetrate through the grooves and are fixedly connected with the correcting piece.
The spherical array receives signals, the framework is matched with the spherical array and limits the moving path of the spherical array during correction, the correction piece is used for adjusting the orientation angle of the spherical array so as to adjust the pitching angle of the spherical array according to the needs, so that the use needs of the spherical array are met, the spherical frame is matched with the spherical array, the spherical array is protected, and a plurality of grooves are used for placing the components of the spherical array.
Each driving frame comprises a pump cavity, a bolt, a telescopic arm and a stabilizing seat, wherein the pump cavity is arranged on the upper side of the correcting piece and fixedly connected with the correcting piece, the bolt is arranged on the upper side of the pump cavity and matched with the pump cavity through oil injection, two ends of the telescopic arm are connected with the spherical array and the stabilizing seat, and the stabilizing seat is arranged on the upper side of the bolt and fixedly connected with the bolt.
The pump chamber cooperation the bolt, through the injection fluid, thereby make the bolt can carry out the change of height as required, and then realize right the regulation of the height of sphere array, and flexible arm cooperation the stable seat, and then realize right the fine setting of the every single move angle of sphere array, thereby further satisfy the correction needs to measurement system, stable seat then is used for installing flexible arm, and then be convenient for right the regulation work of sphere array.
The telescopic arm is provided with a containing sleeve, a sliding arm, a matching roller sleeve and a guide flat cable, wherein the containing sleeve is arranged on the lower side of the spherical array and is rotationally connected with the spherical array, the sliding arm is arranged on the inner side of the containing sleeve, the sliding arm is in sliding connection with the containing sleeve through the matching roller sleeve, the guide flat cable is arranged on the outer surface of the sliding arm so as to be matched with the containing sleeve for self-protection, the matching roller sleeve is arranged on two sides of the outer portion of the sliding arm, and the matching roller sleeve is in rolling fit with the containing sleeve.
The accommodation sleeve is matched with the sliding arm, the relative distance between the accommodation sleeve and the sliding arm is adjusted through the rotation of the matching roller sleeve, the pitching angle of the spherical array can be adjusted, the guide flat cable is matched with the sliding arm, and the abrasion of the guide flat cable is reduced through the sliding arm, namely the service life of the telescopic arm is effectively prolonged.
The correcting piece comprises a supporting plate, a bevel gear set and a limiting seat, wherein the supporting plate is arranged on the lower side of the driving frame and fixedly connected with the driving frame, the bevel gear set is arranged on the inner side of the limiting seat and is rotationally connected with the limiting seat, and the bevel gear set is fixedly matched with the supporting plate.
The supporting plate is used for supporting a plurality of driving frames, the bevel gear group rotates to rotate the supporting plate, further the direction angle of the spherical array is adjusted, and the limiting seat is matched with the bevel gear group, so that the rotation requirement of the bevel gear is met.
The bevel gear set comprises a driven bevel gear and a driving bevel gear, wherein the driving bevel gear is externally connected with a motor so as to drive the driven bevel gear to rotate, the driven bevel gear is arranged at the center of the supporting plate, and the driven bevel gear is further rotationally connected with the limiting seat.
The driving bevel gear rotates under the action of an external motor and drives the driven bevel gear to rotate together, and the driven bevel gear drives the supporting plate to rotate, so that the adjustment of the orientation angle of the whole measuring system can be realized, and the correction requirement can be met.
The invention also provides a correction method of the spherical near-field antenna measurement system, by adopting the measurement system,
The correction method comprises the following steps:
starting the bevel gear set to enable the spherical array to rotate according to the requirement until the spherical array rotates to a preset direction;
starting a driving frame, and adjusting the height of the spherical array in the framework through the cooperation of the pump strength and the stud;
after the height adjustment is finished, the telescopic arm is started again, the accommodating sleeve is driven to move by matching with the rotation of the roller sleeve, so that the fine adjustment of the pitching angle of the spherical array is realized, and the correction work of the measuring system is finished.
And correspondingly providing a correction method according to the modification of the measurement system, and utilizing the cooperation of the driving frame and the spherical frame, so that the orientation angle, the height and the pitching angle of the spherical array can be modified according to the needs, the measurement system can be corrected at any time, and the self-correction capability of the measurement system is effectively improved.
According to the spherical near-field antenna measuring system and the correcting method, the structure of the measuring system is improved, the driving frame is matched with the spherical frame, and the pitching angle of the spherical array is changed through the driving frame, so that the receiving range of the spherical array is effectively expanded, and the application range of the spherical near-field antenna is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an axial measurement structure of a spherical near-field antenna measurement system provided by the invention.
Fig. 2 is a schematic diagram of an axial measurement structure of a calibration element of the spherical near-field antenna measurement system provided by the invention.
Fig. 3 is a schematic side view of a calibration element of the spherical near-field antenna measurement system according to the present invention.
Fig. 4 is a schematic diagram of an axial structure of a driving frame and an antenna board of the spherical near-field antenna measurement system provided by the invention.
Fig. 5 is a schematic diagram of a cross-sectional structure of an antenna board of a spherical near-field antenna measurement system according to the present invention.
Fig. 6 is a schematic cross-sectional structural diagram of a telescopic arm of a spherical near-field antenna measurement system according to the present invention.
Fig. 7 is a schematic diagram of an axial measurement structure of a spherical array of the spherical near-field antenna measurement system provided by the invention.
Fig. 8 is a schematic diagram of a cross-sectional structure of a pump cavity and a stud of a spherical near-field antenna measurement system provided by the invention.
Fig. 9 is a schematic step diagram of a calibration method of a spherical near-field antenna measurement system according to the present invention.
1-Spherical array, 2-skeleton, 3-correcting piece, 4-antenna board, 5-heat preservation cover body, 6-heating piece, 7-driving frame, 8-spherical frame, 9-backup pad, 10-bevel gear group, 11-restriction seat, 12-pump chamber, 13-stud, 14-telescopic arm, 15-stable seat, 16-driven bevel gear, 17-driving bevel gear, 18-axis of rotation, 19-support, 20-accommodation cover, 21-sliding arm, 22-cooperation roller cover, 23-guide winding displacement, 24-dwang, 25-recess, 26-wash port.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 8, the present invention provides a spherical near field antenna measurement system, which includes a spherical array 1, a skeleton 2 and a calibration member 3, wherein the spherical array 1 is disposed on an upper side of the skeleton 2 and is matched with the skeleton 2, the calibration member 3 is disposed on a lower side of the skeleton 2, and the calibration member 3 is in rotational fit with the skeleton 2;
The framework 2 comprises a plurality of driving frames 7 and a spherical frame 8 provided with a plurality of grooves 25, the spherical frame 8 is matched with the spherical array 1 through a plurality of grooves 25, the spherical frame 8 is fixedly connected with the correcting piece 3, the driving frames 7 are rotatably connected with the spherical array 1, and the driving frames 7 penetrate through the grooves 25 and are fixedly connected with the correcting piece 3.
In this embodiment, the spherical array 1 receives signals, the skeleton 2 is matched with and installs the spherical array 1, and limits a moving path of the spherical array 1 during correction, the correction element 3 adjusts an orientation angle of the spherical array 1, so as to be used as required, the driving frame 7 is used for adjusting a pitching angle of the spherical array 1, thereby meeting a use requirement of the spherical array 1, the spherical frame 8 is used for matching with the spherical array 1, further meeting protection of the spherical array 1, and the grooves 25 are used for placing components of the spherical array 1.
Further, each driving frame 7 includes a pump cavity 12, a bolt 13, a telescopic arm 14 and a stabilizing seat 15, the pump cavity 12 is arranged on the upper side of the correcting piece 3 and fixedly connected with the correcting piece 3, the bolt 13 is arranged on the upper side of the pump cavity 12 and is matched with the pump cavity 12 through oil injection, two ends of the telescopic arm 14 are connected with the spherical array 1 and the stabilizing seat 15, and the stabilizing seat 15 is arranged on the upper side of the bolt 13 and is fixedly connected with the bolt 13.
In this embodiment, the pump cavity 12 cooperates with the stud 13, and oil is injected into the stud 13, so that the stud 13 can change in height according to needs, thereby realizing the adjustment of the height of the spherical array 1, while the telescopic arm 14 cooperates with the stabilizing seat 15, thereby realizing the fine adjustment of the pitch angle of the spherical array 1, thereby further satisfying the correction requirement of the measurement system, and the stabilizing seat 15 is used for installing the telescopic arm 14, thereby facilitating the adjustment work of the spherical array 1.
Further, the telescopic arm 14 is provided with a containing sleeve 20, a sliding arm 21, a matching roller sleeve 22 and a guide flat cable 23, the containing sleeve 20 is arranged at the lower side of the spherical array 1 and is rotationally connected with the spherical array 1, the sliding arm 21 is arranged at the inner side of the containing sleeve 20, the sliding arm 21 is in sliding connection with the containing sleeve 20 through the matching roller sleeve 22, the guide flat cable 23 is arranged at the outer surface of the sliding arm 21 so as to be matched with the containing sleeve 20 for self protection, the matching roller sleeve 22 is arranged at two sides of the outer part of the sliding arm 21, and the matching roller sleeve 22 is in rolling fit with the containing sleeve 20.
In this embodiment, the accommodating sleeve 20 is matched with the sliding arm 21, and the relative distance between the accommodating sleeve 20 and the sliding arm 21 is adjusted by rotating the matching roller sleeve 22, so that the pitch angle of the spherical array 1 can be adjusted, and the guide flat cable 23 is matched with the sliding arm 21 and is arranged in the sliding arm 21, so that the abrasion of the guide flat cable 23 is reduced, that is, the service life of the telescopic arm 14 is effectively prolonged.
Further, the correcting member 3 includes a supporting plate 9, a bevel gear set 10 and a limiting seat 11, the supporting plate 9 is disposed at the lower side of the driving frame 7 and fixedly connected with the driving frame 7, the bevel gear set 10 is disposed at the inner side of the limiting seat 11, the bevel gear set 10 is rotationally connected with the limiting seat 11, and the bevel gear set 10 is fixedly matched with the supporting plate 9.
In this embodiment, the supporting plate 9 is used to support a plurality of the driving frames 7, the bevel gear set 10 rotates to rotate the supporting plate 9, so as to adjust the orientation angle of the spherical array 1, and the limiting seat 11 cooperates with the bevel gear set 10 to further meet the rotation requirement of the bevel gear set 10.
Further, the bevel gear set 10 includes a driven bevel gear 16 and a drive bevel gear 17, where the drive bevel gear 17 is externally connected with a motor to drive the driven bevel gear 16 to rotate, the driven bevel gear 16 is disposed at the center of the support plate 9, and the driven bevel gear 16 is further rotationally connected with the limiting seat 11.
In this embodiment, the drive bevel gear 17 rotates under the action of an external motor and drives the driven bevel gear 16 to rotate together, and the driven bevel gear 16 drives the support plate 9 to rotate, so that the adjustment of the orientation angle of the whole measurement system can be realized, and the correction requirement can be met.
Further, the spherical array 1 includes a plurality of antenna boards 4, the number of the plurality of antenna boards 4 is consistent with that of the driving frames 7, and the plurality of antenna boards 4 are arranged in one-to-one correspondence with the plurality of driving frames 7;
The spherical array 1 is also provided with a heat-insulating cover body 5 and a heating block 6, the heating block 6 is arranged at the bottom of the antenna board 4 and is used for heating the antenna board 4, the heat-insulating cover body 5 is coated with the heating block 6, and a drain hole 26 is formed in the bottom of the heat-insulating cover body 5.
In this embodiment, through a plurality of antenna board 4 with correspond the cooperation of drive frame 7, thereby realize to spherical array 1 every antenna board 4's angle modulation, thereby promote spherical array 1's application scope, the heat preservation cover body 5 then cooperates heating piece 6, through the heating of heating piece 6, thereby make antenna board 4 can heat as required, when avoiding external temperature to be lower, influence antenna board 4's performance, the heat preservation cover body 5 is seted up wash port 26 then is used for discharging the drop of water that condenses heat preservation cover body 5.
Further, the limiting seat 11 includes a rotation shaft 18 and a support 19 provided with a rotation rod 24, the rotation shaft 18 is disposed on an upper side of the support 19, the rotation shaft 18 is in rotation fit with the driven bevel gear 16, the support 19 is in rotation fit with the drive bevel gear 17 through the rotation rod 24, and the rotation rod 24 is disposed on an outer side of the support 19;
in this embodiment, the rotation shaft 18 is matched with the support 19, so that the driven bevel gear 16 can rotate with the same axis, and the rotation rod 24 is configured to rotate the drive bevel gear 17 along another axis, so as to effectively improve the stability of the bevel gear set 10.
Referring to fig. 9, the present invention further provides a calibration method of a spherical near field antenna measurement system, with the measurement system described above,
The correction method comprises the following steps:
S101, starting a bevel gear set 10 to enable the spherical array 1 to rotate according to requirements until the spherical array is rotated to a preset orientation;
s102, starting a driving frame 7, and adjusting the height of the spherical array 1 in the framework 2 through the cooperation of the pump strength and the stud 13;
And S103, after the height adjustment is finished, the telescopic arm 14 is started again, and the accommodating sleeve 20 is driven to move by matching with the rotation of the roller sleeve 22, so that the fine adjustment of the pitching angle of the spherical array 1 is realized, and the correction work of the measuring system is finished.
In this embodiment, corresponding to the modification of the measurement system, a correction method is correspondingly provided, and the driving frame 7 is matched with the spherical frame 8, so that the orientation angle, the height and the pitching angle of the spherical array 1 can be modified as required, and the measurement system can be corrected at any time, thereby effectively improving the self-correction capability of the measurement system.
According to the spherical near-field antenna measuring system and the correcting method, the structure of the measuring system is improved, the driving frame 7 is matched with the spherical frame 8, and the pitching angle of the spherical array 1 is changed through the driving frame 7, so that the receiving range of the spherical array 1 is effectively expanded, and the application range of the spherical near-field antenna is effectively improved.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111566112.XA CN114371455B (en) | 2021-12-20 | 2021-12-20 | A spherical near-field antenna measurement system and correction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111566112.XA CN114371455B (en) | 2021-12-20 | 2021-12-20 | A spherical near-field antenna measurement system and correction method |
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| CN114371455A CN114371455A (en) | 2022-04-19 |
| CN114371455B true CN114371455B (en) | 2024-12-27 |
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| US6218999B1 (en) * | 1997-04-30 | 2001-04-17 | Alcatel | Antenna system, in particular for pointing at non-geostationary satellites |
| CN109599675A (en) * | 2018-11-28 | 2019-04-09 | 徐州星耀电子有限公司 | A kind of RF antenna of adjustable-angle |
| CN113126239A (en) * | 2021-04-13 | 2021-07-16 | 西安交通大学 | Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors |
| CN214411541U (en) * | 2021-03-18 | 2021-10-15 | 陕西科技大学 | Lifting type pitching azimuth type antenna pedestal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090006777A (en) * | 2007-07-11 | 2009-01-15 | 주식회사 아이두잇 | Adjustable Satellite Antenna and Bracket |
| ES2805344T3 (en) * | 2016-05-06 | 2021-02-11 | Amphenol Antenna Solutions Inc | High Gain Multibeam Antenna for 5G Wireless Communications |
| CN105958216B (en) * | 2016-07-12 | 2019-01-22 | 成都泰格微电子研究所有限责任公司 | A kind of conformal antenna array |
| CN209675471U (en) * | 2019-05-28 | 2019-11-22 | 天津市凌云精密机电有限公司 | A kind of apparatus for deicing satellite antenna |
| CN111579886B (en) * | 2020-05-19 | 2022-08-09 | 中国电子科技集团公司第三十八研究所 | Correction method of spherical near-field antenna measurement system |
| CN113594698B (en) * | 2021-07-30 | 2023-09-05 | 杭州永谐科技有限公司 | Spherical surface adjusting device for antenna |
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2021
- 2021-12-20 CN CN202111566112.XA patent/CN114371455B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218999B1 (en) * | 1997-04-30 | 2001-04-17 | Alcatel | Antenna system, in particular for pointing at non-geostationary satellites |
| CN109599675A (en) * | 2018-11-28 | 2019-04-09 | 徐州星耀电子有限公司 | A kind of RF antenna of adjustable-angle |
| CN214411541U (en) * | 2021-03-18 | 2021-10-15 | 陕西科技大学 | Lifting type pitching azimuth type antenna pedestal |
| CN113126239A (en) * | 2021-04-13 | 2021-07-16 | 西安交通大学 | Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors |
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| CN114371455A (en) | 2022-04-19 |
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